Ski



Nov. 7, 1944.

A. G. KALLs'rRM Erm.

SKI

Filed April 5, 1943 2 Sheets-Sheet 1 Jhveniolzs. ANDER GusrAv KALLSTAOM.ALvnR nsKn. Pemvs K Patented Nov. 7, 1944 y ,2,362,380 UMTED` STATI-:sPATENT 'o1-fluor. y

.SKI

T y Anders Gustav Kllstrm, 'skarshamn, v(and Alvar Eskil Sweden PetrusKjellstrm, Stockholm,y

Application pril 5, 1943, Serial No. 481,826 `In Sweden May 2, 1942 11claims. j (o1.` 28o-11.13)

The present invention relates toan improved ski of wood. TheA object ofthe invention is to produce a light ski and to reduce considerably thequantity of the special, selected skiwood that is available now onlywith difficulty. y y l A' Ihe invention is essentially characterized bythe feature that the ski comprisesv a ski body consisting of at leastone layer of wood, a stiiening member consisting of at least one layerof Wood which member is bent to alchannel-shaped cross-sectional formand glued to the upper side of the ski body, a plane foot-plate of woodglued to the upper side of or formedby a portion v member 9 has achannel-shaped cross-section and extends along nearly 2/3 of the lengthof the ski. `At the-place where the foot-plate is to ber xed, afilling-piece I0 is suitably provided between the stiiTening-rnember 9and the layei` 8. This filling piece I0 is somewhatshorter "than thefoot plate II, which'` is flaton its upper side and has a rectangularcross-section.

Its underside is formed in such a way that it coincides exactly Withtheform of the channelshaped'stiiening member 9, to whichit is directlyglued. In order to resist arising strains several'transverse/intermediate walls I2 are suitably inserted in thestiffening member as shown on the drawings.

, The ski according toFigS. 12-16 differs from the above describedembodiment by'thefeature IIL-III, IV-IV, V-,V, and VI--VI respectivelyin Fig. 1.

' Fig. 7` is a plan'view of a second embodiment of the ski. Fig..8 is alongitudinal sectional elevation of the same' ski. p

. Figs. 9e11 are sections along the lines IX-IX, X-X, and XSL-XIrespectively in Fig. 8.

Figs. 12 and 13 show a plan View and ailongitudinalsectional velevationrespectively of a third embodiment of the ski.-

Figs. 14-16 are sections along the lines .XIV-EGV, XV-XV, and XVI--XVIrespectively in Fig. 13.

In Figs. 1-6, I is the vstiftening member, which is glued to the skibody 2, which may be provid-` ed in the known way with aguiding-groove-3. Atv the place for the foot-plate of the ski, thestiffening member may be plain in rits whole width, as shown on thedrawings, so that the stiiening member forms the foot-plate atsaidplace.

The channel-shaped cavity4 formed between the ski body 2 and thestiffening member I is filled by a lling-piece 5 beneath 'thefoot-plate. As shown in Figs. 2-6, the stiifening member I is formed insuch a way that the depth of the channel space decreases in thedirection towards that the stiflening member "9 .consisting of Aseverallayers extends along a greater portion of the length of the ski. Alsothe fastening of the stiffening member 9 is a little different. As shownin' Figs. `ll-lfthe upper vlayer 8 is provided on its longitudinalside-edges with a groove or recess I3, which in the middle portion ofthe ski passes through the whole layer 8, the surface of thelongitudinalside ends'of the lstiftening member 9 lying there ush withthe longitudinal side edges of the ski, as Figs. 14 and 15 illustrate.However, this groove I3 decreases in the direction towards the ends ofthe ski and terminates 'somewhat before the rear and fore ends of thestiffeningl member. By meanszof this arrangement a considerably betterglueconnectionbetween the stiening member` and theski body is attained,as will be seen from Figs. 14 and i5. In this embodiment the lling pieceI0 is longer so that it extends below the whole foot plate II andfurther strengthens the ski.

Otherwise the ski vaccording to thisvembodiment is formed in the vsameway as the skiraccording to Figs. 7-11, 'and the' same references areused for the same parts of the ski.

The described embodiments are only chosen as examples and it isunderstood that the present invention may be` modified in'many ways vwithout departing from the principalidea of the invention.

Thus, for` instance, thesupporting intermediate walls I2 may be'replacedby ribs'glued to the inner side of the stiffening member and, ifdesired, also to the layer 8, T y

Having now particularly described the nature of our invention and themanner of its operation what we claim is: l

l. A ski, comprising a vski body consisting of at least one layer ofwood,`a`stifeningmember consisting of at least one layer of wood, saidstiiening member ybeing bent to a channel-shaped cross-sectional formand being glued to the upper side` of said ski body, aplanefoot-plate ofwood, said foot-plate being formed by a portion of said stiieningmember, and.. a.. ,wooden strengtheningpiece, said strengthening, piecebeing inserted into the space between said stii'ening member and saidski beneath said foot-plate.

2. A ski,.comprising a ski body consisting of several layers of woodglued together, a stiftening member consisting of several layers oi woodglued together, said stiieningi,member beingbent to a channel-shapedcross-sectional form and being glued to the upper side of said ski body,a plane foot-plate of wood, said'foot-platev` being formed by a portionof said stiiening member,

and a wooden strengthening piece, said-strengthening piece beinginserted into the space between said-'stiffening member and'saidfskibodybeneath said foot'ep'late.

3; yA ski; comprisingfaski body consisting. of at leastlonelayeroffwoo'd, a stiifening member consistingof: at least one layer'of. wood, said stiiening member. being bent' to a. channel-shapedcrossese'ctional formandbeingglued to the upper side of saidskibody, aVplanefoot-plate of Wood',xsaid foot-plate'. being gluedto the uppersi'def. oi" saidi stiifening: memberg, andV a` woodenstrengthening'piece, said strengthening piece beinginserted'into thespace between said stiifeningzm'emberandisaid ski body beneath'saidfootplat'e'..

4.*A ski, comprising a ski body consisting of several layers of woodglued together, a stiiening. member consistingrof several layers of woodglued?` together, saidstiffening member. being bent to af channelshapedcross-sectional form and beingwgluedto.theupper.side of said ski body, a

planefooteplate of "wood, said foot-plate being glued=to therupperA sideof said stiiening mem-l ber;A and,` a'` wooden strengthening piece, saidstrengtheningrpiece'being'inserted into the space betweeni saidstiiening member and said ski bo'dy'beneath said foot-plate,

5: A ski, comprising a ski bodyconsisting of at 4leastf one layer ofwood, a stiiening member conleasty onelayer, of wood, a stiffeningmember consisting of at least one layer of wood, saidstiffening memberbeing` bent to a channeleshaped cross-sectional form and being glued tothe upper side of said ski body, a plane foot-plate of wood,said'foot-plate. being glued to the upper side of said,v stiffening`member, a wooden strengthening piece, said strengthening piece beinginserted into the space between said stiiening member and said ski. bodybeneath said foot-plate, and supporting intermediate Wooden members,said members being arranged inthe transverse directioniof the skirandxedbetween said stiiening member and. said skibody- '7, A. ski,comprising aV skiY body consisting of atA least one layer of Wood,astiifening member consisting of at least one layer of` wood, saidstiffening member being bent to a channel-shaped crossfsectionallformandbeing, glued tor the uppersidegof' said-ski bodyg; recesses formedalong the longitudinal edges of said ski body, said stiffening memberfitting in said recesses, a plane foot-plate of wood, said foot-platebeing formed by a portion of said stiffening member, and a lwoodenstrengthening piece, said strengthening piecevbeingrinsertedinto thespace between said stifenin'g memberand said ski body beneath saidfoot-plate. x

8;' A- ski, comprising a ski body consisting of at least one layer ofwood, a stiiiening member consistingiof at least one layer of wood, saidstiffening member being bent to a channel-shaped cross-sectional formandfbeing'glue'd tothe upperside' of saidfski body; recesses formedalong the longitudinal edgesof.' saidskibody, said stiff'- ening memberfitting' inY said'. recesses, aplane foot-plate of wood, said foot-platebeing glued to the upper side ofi'y saidfstienin'g member; and a woodenstrengthening piece', saidfstrengthening piece beinginsertedy into thespace between' said stifiening member. and said:v ski body beneathsaidIfoot-plate.

9: A ski, comprising' af ski bodyconsisting' of at least one layer ofwood, a stiieningmember consisting. of several layers of; Wood glued'together, said stiifenin'g member being' bent'.r to a channel-shaped'`cross-sectional forml and being gluedt'o the upper: sidezofsaidski-body,. recesses formed along the longitudinal edges of saidsk'ibody', for' receiving theI longitudinal' side: ends of said; stif'eningmember, the surfaces of saidflon'- gitudinal side ends lying ush withthe-.longitudinal sideiedgeszofsaidski atleastink the middle partthereof, al plane foot-plateof woodg. said foot-plate beingv formed by aportion ofv saidstifE- eningmem'ber, and 'a Woodenstrengthening` piece,said strengthening piece being insertedinto` the space between'. saidstiilenin'g member and' said ski body beneathl said footeplate.

10. A ski, comprising a skiibodyconsisting of at least one layer'ofwood; a' stiffening member consisting of several layers `of.- wood?`glued t gether, said' stiffening member being bent to a channeleshaped*cross-sectional form and being glued to the upper side of. said ski'.body, recesses formed along' the'longitudinal edges ofsaid' ski body,said stifieni'ng. member fittingA in said recesses, a plane foot-plateof wood, said foot-plate being glued tothefupper side of said stiifeningmember, anda' wooden strengthening piece, said strengthening piece'being inserted linto the space between said stiiening memberandfsaid skibody beneath. said foot-plate, said recesses decreasing in depth from.thefsit'e of. saidffo'ot-plate` towards the. fore andlrearIen'ds ofsaid'stiifeningI member and terminating therebefore. t v

11;. A ski, comprising a ski.L body: consisting. of at least onelayer ofwood; a stiifening member consistingV of; at.Y least one layer of*Iwood, a plane foot-plate, said stiiening member-beingbent-t'o achannelr-shaped crossesectional 4form before and* behind. said'foot'plate,.said footfplate, being formedby aplan'e portion' of;said'stifiening: piece between said channel-shaped` portions. ofsaidvstiifening member, andl a wooden strengthening piece,saidlstrengthening' piece-being inserted into the spacebetween saidAplane portion: of said stiiening member andsaidskibody beneath saidfooteplate.

ANDERS GUsfrAu KLLSTRM. ALVAR EsKiL. PETRUS..y KJELLs'rac'lvr-

